mirror of
https://github.com/ilyakooo0/nixpkgs.git
synced 2024-11-12 03:56:17 +03:00
f129df86a1
Previously unstable versions would not have been found, because the regular expression was looking for a numeric version after the attribute name. When the version is however an unstable one, it would start with > unstable-2021-04-23 and therefore not match the pattern.
227 lines
8.3 KiB
Python
Executable File
227 lines
8.3 KiB
Python
Executable File
#! /usr/bin/env nix-shell
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#! nix-shell -i python3 -p "python3.withPackages (ps: with ps; [ mypy attrs packaging rich ])
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#
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# This script downloads Home Assistant's source tarball.
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# Inside the homeassistant/components directory, each integration has an associated manifest.json,
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# specifying required packages and other integrations it depends on:
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#
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# {
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# "requirements": [ "package==1.2.3" ],
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# "dependencies": [ "component" ]
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# }
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#
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# By parsing the files, a dictionary mapping integrations to requirements and dependencies is created.
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# For all of these requirements and the dependencies' requirements,
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# nixpkgs' python3Packages are searched for appropriate names.
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# Then, a Nix attribute set mapping integration name to dependencies is created.
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import json
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import os
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import pathlib
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import re
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import subprocess
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import sys
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import tarfile
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import tempfile
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from io import BytesIO
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from typing import Dict, Optional, Set, Any
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from urllib.request import urlopen
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from packaging import version as Version
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from rich.console import Console
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from rich.table import Table
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COMPONENT_PREFIX = "homeassistant.components"
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PKG_SET = "python3Packages"
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# If some requirements are matched by multiple Python packages,
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# the following can be used to choose one of them
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PKG_PREFERENCES = {
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# Use python3Packages.youtube-dl-light instead of python3Packages.youtube-dl
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"youtube-dl": "youtube-dl-light",
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"tensorflow-bin": "tensorflow",
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"tensorflow-bin_2": "tensorflow",
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"tensorflowWithoutCuda": "tensorflow",
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"tensorflow-build_2": "tensorflow",
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"whois": "python-whois",
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}
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def run_mypy() -> None:
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cmd = ["mypy", "--ignore-missing-imports", __file__]
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print(f"$ {' '.join(cmd)}")
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subprocess.run(cmd, check=True)
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def get_version():
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with open(os.path.dirname(sys.argv[0]) + "/default.nix") as f:
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# A version consists of digits, dots, and possibly a "b" (for beta)
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m = re.search('hassVersion = "([\\d\\.b]+)";', f.read())
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return m.group(1)
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def parse_components(version: str = "master"):
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components = {}
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with tempfile.TemporaryDirectory() as tmp:
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with urlopen(
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f"https://github.com/home-assistant/home-assistant/archive/{version}.tar.gz"
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) as response:
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tarfile.open(fileobj=BytesIO(response.read())).extractall(tmp)
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# Use part of a script from the Home Assistant codebase
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core_path = os.path.join(tmp, f"core-{version}")
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sys.path.append(core_path)
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from script.hassfest.model import Integration
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integrations = Integration.load_dir(
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pathlib.Path(
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os.path.join(core_path, "homeassistant/components")
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)
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)
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for domain in sorted(integrations):
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integration = integrations[domain]
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components[domain] = integration.manifest
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return components
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# Recursively get the requirements of a component and its dependencies
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def get_reqs(components: Dict[str, Dict[str, Any]], component: str, processed: Set[str]) -> Set[str]:
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requirements = set(components[component].get("requirements", []))
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deps = components[component].get("dependencies", [])
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deps.extend(components[component].get("after_dependencies", []))
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processed.add(component)
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for dependency in deps:
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if dependency not in processed:
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requirements.update(get_reqs(components, dependency, processed))
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return requirements
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def dump_packages() -> Dict[str, Dict[str, str]]:
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# Store a JSON dump of Nixpkgs' python3Packages
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output = subprocess.check_output(
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[
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"nix-env",
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"-f",
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os.path.dirname(sys.argv[0]) + "/../../..",
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"-qa",
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"-A",
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PKG_SET,
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"--json",
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]
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)
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return json.loads(output)
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def name_to_attr_path(req: str, packages: Dict[str, Dict[str, str]]) -> Optional[str]:
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attr_paths = set()
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names = [req]
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# E.g. python-mpd2 is actually called python3.6-mpd2
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# instead of python-3.6-python-mpd2 inside Nixpkgs
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if req.startswith("python-") or req.startswith("python_"):
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names.append(req[len("python-") :])
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# Add name variant without extra_require, e.g. samsungctl
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# instead of samsungctl[websocket]
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if req.endswith("]"):
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names.append(req[:req.find("[")])
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for name in names:
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# treat "-" and "_" equally
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name = re.sub("[-_]", "[-_]", name)
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# python(minor).(major)-(pname)-(version or unstable-date)
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# we need the version qualifier, or we'll have multiple matches
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# (e.g. pyserial and pyserial-asyncio when looking for pyserial)
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pattern = re.compile("^python\\d\\.\\d-{}-(?:\\d|unstable-.*)".format(name), re.I)
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for attr_path, package in packages.items():
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if pattern.match(package["name"]):
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attr_paths.add(attr_path)
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if len(attr_paths) > 1:
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for to_replace, replacement in PKG_PREFERENCES.items():
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try:
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attr_paths.remove(PKG_SET + "." + to_replace)
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attr_paths.add(PKG_SET + "." + replacement)
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except KeyError:
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pass
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# Let's hope there's only one derivation with a matching name
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assert len(attr_paths) <= 1, "{} matches more than one derivation: {}".format(
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req, attr_paths
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)
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if len(attr_paths) == 1:
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return attr_paths.pop()
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else:
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return None
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def get_pkg_version(package: str, packages: Dict[str, Dict[str, str]]) -> Optional[str]:
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pkg = packages.get(f"{PKG_SET}.{package}", None)
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if not pkg:
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return None
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return pkg["version"]
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def main() -> None:
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packages = dump_packages()
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version = get_version()
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print("Generating component-packages.nix for version {}".format(version))
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components = parse_components(version=version)
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build_inputs = {}
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outdated = {}
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for component in sorted(components.keys()):
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attr_paths = []
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missing_reqs = []
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reqs = sorted(get_reqs(components, component, set()))
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for req in reqs:
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# Some requirements are specified by url, e.g. https://example.org/foobar#xyz==1.0.0
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# Therefore, if there's a "#" in the line, only take the part after it
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req = req[req.find("#") + 1 :]
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name, required_version = req.split("==", maxsplit=1)
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attr_path = name_to_attr_path(name, packages)
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if our_version := get_pkg_version(name, packages):
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if Version.parse(our_version) < Version.parse(required_version):
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outdated[name] = {
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'wanted': required_version,
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'current': our_version
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}
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if attr_path is not None:
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# Add attribute path without "python3Packages." prefix
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attr_paths.append(attr_path[len(PKG_SET + ".") :])
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# home-assistant-frontend is always in propagatedBuildInputs
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elif name != 'home-assistant-frontend':
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missing_reqs.append(name)
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else:
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build_inputs[component] = (attr_paths, missing_reqs)
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n_diff = len(reqs) > len(build_inputs[component])
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if n_diff > 0:
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print("Component {} is missing {} dependencies".format(component, n_diff))
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print("missing requirements: {}".format(missing_reqs))
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with open(os.path.dirname(sys.argv[0]) + "/component-packages.nix", "w") as f:
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f.write("# Generated by parse-requirements.py\n")
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f.write("# Do not edit!\n\n")
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f.write("{\n")
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f.write(f' version = "{version}";\n')
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f.write(" components = {\n")
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for component, deps in build_inputs.items():
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available, missing = deps
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f.write(f' "{component}" = ps: with ps; [')
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if available:
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f.write(" " + " ".join(available))
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f.write(" ];")
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if len(missing) > 0:
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f.write(f" # missing inputs: {' '.join(missing)}")
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f.write("\n")
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f.write(" };\n")
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f.write("}\n")
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if outdated:
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table = Table(title="Outdated dependencies")
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table.add_column("Package")
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table.add_column("Current")
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table.add_column("Wanted")
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for package, version in sorted(outdated.items()):
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table.add_row(package, version['current'], version['wanted'])
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console = Console()
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console.print(table)
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if __name__ == "__main__":
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run_mypy()
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main()
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